Grani Roc MEM AC-HV Single Wire Cutting for dressing, slabing stone blocks

The MEM AC-HV wire from Grani Roc is a machine designed for dressing and slabbing stone blocks. The machine is specially designed to cut horizontally but it can also cut vertically. The machine has an automatic wedging system that makes the horizontal cutting process completely automatic. To cut horizontally gives a higher productivity as well as a higher performance of the tool. Furthermore, a higher productivity is achieve due to the non existence of stop times in loading a loading operations as it happens in the conventional static machines.
·The bridge structure and pillars of the machine are built in laminated steel. All surfaces of contact between the different parts are machined for guaranteeing high precision in assembly and also in the cutting process.
· All the steel elements of the structure are subjected to a surface finishing consisting of a deep cleaning and degreasing treatment, a metallization treatment and corresponding protective layers and painting. These treatments enhance the durability of the machine against
aggressive weather and working conditions.
· The main motor is direct in the main pulley, and it is controlled by an electronic frequency variator –inverter-, that permits to apply progressive linear speed to the wire and its adjustment to optimize the behaviour and performance of the tool.
· The tensioning of the wire is made pneumatic and automatically with indication of wire breakage or shortage. In this way the machine controls automatically the down movement of the machine, adapting it to the optimum working tension of the wire, avoiding possible breakages and optimizing its behaviour.
· The machine has an automatic wedging system which introduces the wedges into the block to be cut using the number of wedges pre-programmed by the operator in the control panel.
· All the main pulleys –drive and tensioning– and guiding wheels are protected by rubber liners in order to get the necessary traction of the wire. Such liners can be easily changed once they are worn out.
· The machine is equipped with an automatic cooling system for the diamond wire with detection of constant water pressure. This system stops the machine in the case of lack or insufficient water flow, protecting the tool and preventing possible deterioration or damage of the equipment.
· All the up and down screws are protected with hoods against dust and water.
· The machines has an automatic greasing system that injects lubricating liquid in the critical parts of the machine ensuring their correct functioning and the long life of the spare parts.
· The control panel, situated in the lateral part of the machine, has all the drive and protection components and devices of all control and safety equipment of the machine. All these components are standard, allowing easy and quick maintenance and / or replacement.